<template>
  <div>
    <div class="card" style="margin-bottom: 5px">
<!--      加上clearable这个属性可以快速清除也就是那个叉叉顺便刷新一下 v-model="data.name" 将输入的文字显示到输入框内-->
      <el-input clearable @clear="load" style="width: 240px;margin-right: 5px;" v-model="data.name" placeholder="请输入名称查询" :prefix-icon="Search"></el-input>
      <el-input clearable @clear="load" style="width: 240px;margin-right: 5px;" v-model="data.username" placeholder="请输入账号查询" :prefix-icon="Search"></el-input>
      <el-button type="primary" @click="load">查 询</el-button>
      <el-button @click="reset">重 置</el-button>
    </div>

    <div class="card" style="margin-bottom: 5px">
      <el-button type="primary" @click="handleAdd">新  增</el-button>
      <el-button type="danger" @click="deleteBatch">批量删除</el-button>
      <el-button type="info" @click="exportData">批量导出</el-button>
      <el-upload action="http://localhost:9999/user/import" style="display: inline-block;margin-left: 10px;" :show-file-list="false" :on-success="handleImportSuccess">
        <el-button type="success" >批量导入</el-button>
      </el-upload>

    </div>

    <div class="card" style="margin-bottom: 5px">
      <el-table :data="data.tableData" style="width: 100%" @selection-change="handleSelectionChange" :header-cell-style="{fontWeight: 'bold',color: '#333',backgroundColor: '#c902f6'}">

        <!-- 多选列 -->
        <el-table-column type="selection" width="55"/>
        <el-table-column  label="头像" width="100">
          <template #default="scope">
            <el-image v-if="scope.row.avatar" :preview-src-list="[scope.row.avatar]"
                    :src="scope.row.avatar" :preview-teleported="true"
                      style="width: 40px; height: 40px;border-radius: 50%;display: block;" />
          </template>
        </el-table-column>
        <el-table-column prop="username" label="账号"/>
        <el-table-column prop="name" label="名称" />

        <el-table-column prop="phone" label="电话" />
        <el-table-column prop="email" label="邮箱" />
        <el-table-column label="操作" width="100">
          <template #default="scope">
            <el-button type="primary" icon="Edit" circle @click="handleEdit(scope.row)"></el-button>
            <el-button type="danger" icon="Delete" circle @click="del(scope.row.id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>

<!--   分页-->
    <div class="card">
      <el-pagination
          v-model:current-page="data.pageNum"
          v-model:page-size="data.pageSize"
          :page-size="data.pageSize"
          layout="total,sizes, prev, pager, next,jumper"
          :page-sizes="[5,10,20]"
          :total="data.total"
          @current-change="load"
          @size-change="load"

      />
    </div>

    <el-dialog v-model="data.formVisible" title="普通用户信息" width="30%" destroy-on-close>
      <el-form ref="formRef" :model="data.form" :rules="data.rules" label-width="80px" style="padding: 20px 30px 10px 0">
        <el-form-item prop="username" label="账号">
          <el-input v-model="data.form.username" autocomplete="off" placeholder="请输入账号"/>
        </el-form-item>

        <el-form-item prop="name" label="名称">
          <el-input v-model="data.form.name" autocomplete="off" placeholder="请输入名称"/>
        </el-form-item>

        <el-form-item prop="name" label="电话">
          <el-input v-model="data.form.phone" autocomplete="off" placeholder="请输入电话"/>
        </el-form-item>

        <el-form-item prop="name" label="邮箱" placeholder="请输入邮箱">
          <el-input v-model="data.form.email" autocomplete="off" />
        </el-form-item>

        <el-form-item prop="avatar" label="头像" >
          <el-upload
            action="http://localhost:9999/files/upload"
            :headers="{ token: data.user.token }"
            :on-success="handleFileSuccess"
            list-type="picture"
          >
            <el-button type="primary">上传头像</el-button>
          </el-upload>
        </el-form-item>

      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button @click="data.formVisible = false">Cancel</el-button>
          <el-button type="primary" @click="save()">
            Confirm
          </el-button>
        </div>
      </template>
    </el-dialog>
  </div>

</template>

<script setup>
import {reactive, ref} from "vue";
import {Search} from "@element-plus/icons-vue";
import axios from "axios";
import request from "@/utils/request.js";
import {ElMessage, ElMessageBox} from "element-plus";

const data = reactive({
  user: JSON.parse(localStorage.getItem("code2025_user") || '{}'),
  username: '',
  name: '',
  pageNum: 1,
  pageSize: 5,
  total: 0,
  tableData: [],
  formVisible: false,
  form: {},
  rules: {
    username: [
      { required:true,message: '请填写账号',trigger: 'blur' }
    ],
    name: [
      { required:true,message: '请填写名称',trigger: 'blur' }
    ],
    phone: [
      { required:true,message: '请填写手机',trigger: 'blur' }
    ],
    email: [
      { required:true,message: '请填写邮箱',trigger: 'blur' }
    ]
  },
  rows: [],
  ids: []
})


const formRef = ref()

const load = () => {
  request.get('/user/selectPage',{
    params: {
      pageNum: data.pageNum,
      pageSize: data.pageSize,
      name: data.name,
      username: data.username
    }
  }).then(res=>{
    if(res.code === '200'){
      data.tableData = res.data.list;
      data.total = res.data.total;
    }else{
      ElMessage.error(res.msg);
    }
  })
}
load()

const reset = () => {
  data.name = ''
  data.username = ''
  load()
}

const handleAdd = () => {
  data.formVisible = true
  data.form = {}
}

const add = () => {
  //formRef是表单的引用
  formRef.value.validate((valid) => {
    if(valid){  //验证通过的情况下
      request.post('/user/add',data.form).then(res=>{
        if(res.code === '200'){
          data.formVisible = false
          ElMessage.success('新增成功')
          load()
        }else{
          ElMessage.error(res.msg);
        }
      })
    }
  })

}

const handleEdit = (row) => {
  data.form = JSON.parse(JSON.stringify(row)) //深度拷贝数据
  data.formVisible = true
}


const update = () => {
  formRef.value.validate((valid) => {
    if(valid){  //验证通过的情况下
      request.put('/user/update',data.form).then(res=>{
        if(res.code === '200'){
          data.formVisible = false
          ElMessage.success('修改成功')
          load()
        }else{
          ElMessage.error(res.msg);
        }
      })
    }
  })

}

const save = () => {
  data.form.id ? update():add()
}

const del = (id)=>{
  ElMessageBox.confirm('删除后无法恢复,您确认删除吗?','删除确认',{ type:"warning" }).then(res => {
    request.delete('/user/delete/'+id).then(res=>{
      if(res.code === '200'){
        ElMessage.success('删除成功')
        load()
      }else{
        ElMessage.error(res.msg);
      }
    })
  }).catch(err=>{

  })
}

const handleSelectionChange = (rows) => { // rows 就是实际选择的数组
  // console.log(rows)
  data.rows = rows
  data.ids = data.rows.map(v => v.id)//map可以把对象的数组转换成一个纯数字的数组[1,2,3]
}
//逻辑删除也可以

const deleteBatch = () =>{
  if(data.rows.length === 0){
    ElMessage.warning('请选择数据')
    return
  }

  ElMessageBox.confirm('删除后无法恢复,您确认删除吗?','删除确认',{ type:"warning" }).then(res => {
    request.delete('/user/deleteBatch',{data: data.rows}).then(res=>{
      if(res.code === '200'){
        ElMessage.success('批量删除成功')
        load()
      }else{
        ElMessage.error(res.msg);
      }
    })
  }).catch(err=>{

  })
}

const exportData= () => {
  let idsStr = data.ids.join(",") //把数组转换成字符串[1,2,3] -> "1,2,3"
  let url = `http://localhost:9999/user/export?username=${data.username}&name=${data.name}`//这里也可以使用三目表达式data.username===null?'':data.username
  + `&ids=${idsStr}`
  + `&token=${data.user.token}`
  window.open(url)
}

const handleImportSuccess = (res) => {
  if(res.code=='200') {
    ElMessage.success("批量导入数据成功")
    load()
  }else{
    ElMessage.error(res.msg)
  }
}

const handleFileSuccess = (res) => {
  data.form.avatar = res.data
}

</script>
